sar8.asm

来自「PSOC 电动自行车代码 器件采用CYPRESS新电动自行车器件CY8C245」· 汇编 代码 · 共 594 行 · 第 1/2 页

;
;  ARGUMENTS:  Byte:
;
;  RETURNS: No return value
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to preserve their values across calls to fastcall16
;    functions.
;
 SAR8_AutoAlign:
_SAR8_AutoAlign:
    RAM_PROLOGUE RAM_USE_CLASS_1
    and  A, SAR8_AUTOALIGN             ; remove extraneous data if any
    jnz  .Set1
    and  reg[SAR8_CONTROL_1_REG], ~SAR8_AUTOALIGN
    jmp  .Done
.Set1:
    or   reg[SAR8_CONTROL_1_REG], SAR8_AUTOALIGN
.Done:
    RAM_EPILOGUE RAM_USE_CLASS_1
    ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: SAR8_SetAlignPath
;
;  DESCRIPTION: Selects Trigger logic
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:  Byte:
;
;  RETURNS: No return value
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to preserve their values across calls to fastcall16
;    functions.
;
 SAR8_SetAlignPath:
_SAR8_SetAlignPath:
    RAM_PROLOGUE RAM_USE_CLASS_2
    and  A, 0x06                                    ; remove extraneous data if any
    mov  X, SP
    push A
    mov  A, reg[SAR8_CONTROL_1_REG]
    and  A, ~0x06                                   ; clear previous settings
    or   A, [X]
    mov  reg[SAR8_CONTROL_1_REG], A
    pop  A
    RAM_EPILOGUE RAM_USE_CLASS_2
    ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: SAR8_SetHighAlignSrc
;
;  DESCRIPTION:
;    Sets path for high align source
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:  input BYTE      Value:
;                              0 = None
;                              1 = DBB00
;                              2 = DBB01
;                              3 = DCB02
;                              4 = DCB03
;
;  RETURNS: No return value
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to preserve their values across calls to fastcall16
;    functions.
;
 SAR8_SetHighAlignSrc:
_SAR8_SetHighAlignSrc:
    RAM_PROLOGUE RAM_USE_CLASS_2
    and  A, 0x07                                      ; remove extraneous data if any
    index   SAR8_AlignSrc
    asl  A
    mov  X, SP
    push A
    M8C_SetBank1
    mov  A, reg[SAR8_TRIGGER_SRC_REG]
    and  A, 0x55   ; empty trigger high bits: 7,5,3,1
    or   A, [X]
    mov  reg[SAR8_TRIGGER_SRC_REG], A
    M8C_SetBank0
    pop  A
    RAM_EPILOGUE RAM_USE_CLASS_2
    ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: SAR8_SetLowAlignSrc
;
;  DESCRIPTION:
;    Sets path for low align source
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:  Byte:  0 = None
;                     1 = DBB00
;                     2 = DBB01
;                     3 = DCB02
;                     4 = DCB03
;
;  RETURNS: No return value
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to preserve their values across calls to fastcall16
;    functions.
;
 SAR8_SetLowAlignSrc:
_SAR8_SetLowAlignSrc:
    RAM_PROLOGUE RAM_USE_CLASS_2
    and  A, 0x07                                      ; remove extraneous data if any
    index   SAR8_AlignSrc
    mov  X, SP
    push A
    M8C_SetBank1
    mov  A, reg[SAR8_TRIGGER_SRC_REG]
    and  A, 0xAA   ; empty trigger high bits: 6,4,2,0
    or   A, [X]
    mov  reg[SAR8_TRIGGER_SRC_REG], A
    M8C_SetBank0
    pop  A
    RAM_EPILOGUE RAM_USE_CLASS_2
    ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: SAR8_SetCmpL
;
;  DESCRIPTION:
;    Places the input value into the compare low trigger register as the
;    compare high value
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:
;       an input of one BYTE will be used for the comparators low reference
;
;  RETURNS: No return value
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to preserve their values across calls to fastcall16
;    functions.
;
 SAR8_SetCmpL:
_SAR8_SetCmpL:
    RAM_PROLOGUE RAM_USE_CLASS_1
    M8C_SetBank1
    mov  reg[SAR8_COMPARE_LO_REG], A        ; place input value into compare low reg
    M8C_SetBank0
    RAM_EPILOGUE RAM_USE_CLASS_1
    ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: SAR8_SetCmpH
;
;  DESCRIPTION:
;    Places the input value into the compare high trigger register as the
;    compare high value
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:  an input of one BYTE will be used for the comparators
;              high reference
;
;  RETURNS: No return value
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to preserve their values across calls to fastcall16
;    functions.
;
 SAR8_SetCmpH:
_SAR8_SetCmpH:
    RAM_PROLOGUE RAM_USE_CLASS_1
    M8C_SetBank1
    mov  reg[SAR8_COMPARE_HI_REG], A        ; place input value into compare high reg
    M8C_SetBank0
    RAM_EPILOGUE RAM_USE_CLASS_1
    ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: SAR8_SetScale
;
;  DESCRIPTION:
;    Divides raw ADC results by 2^n depending on input argument n.
;    ***check for corner case of 111!
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:  Byte:
;                     00h = no divide
;                     08h = divide by 2
;                     10h = divide by 4
;                     18h = divide by 8
;                     20h = divide by 16
;                     28h = divide by 32
;                     30h = divide by 64
;
;  RETURNS: No return value
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to preserve their values across calls to fastcall16
;    functions.
;
 SAR8_SetScale:
_SAR8_SetScale:
    RAM_PROLOGUE RAM_USE_CLASS_2
    and  A, 0x38                                    ; remove extraneous data if any
    cmp  A, 0x38                                    ; set scale=64 for invalid entry
    jnz  .L1
    mov  A, 0x30
.L1:
    mov  X, SP
    push A
    M8C_SetBank1
    mov  A, reg[SAR8_CONTROL_2_REG]
    and  A, ~0x38                                   ; clear previous settings
    or   A, [X]
    mov  reg[SAR8_CONTROL_2_REG], A
    M8C_SetBank0
    pop  A
    RAM_EPILOGUE RAM_USE_CLASS_2
    ret
.ENDSECTION

.SECTION
;-----------------------------------------------------------------------------
;  FUNCTION NAME: SAR8_SetRunMode
;
;  DESCRIPTION:
;    Sets run mode for ADC to Free Run or One-Shot
;
;-----------------------------------------------------------------------------
;
;  ARGUMENTS:  Byte:  0 = ADC in One-Shot Mode
;                     1 = ADC in Free Running Mode
;
;  RETURNS: No return value
;
;  SIDE EFFECTS:
;    The A and X registers may be modified by this or future implementations
;    of this function.  The same is true for all RAM page pointer registers in
;    the Large Memory Model.  When necessary, it is the calling function's
;    responsibility to preserve their values across calls to fastcall16
;    functions.
;
 SAR8_SetRunMode:
_SAR8_SetRunMode:
    RAM_PROLOGUE RAM_USE_CLASS_1
    M8C_SetBank1
    and  A, 0x01                ; remove extraneous data if any
    jnz  .FreeRun
    and  reg[SAR8_CONTROL_2_REG], ~0x40
    jmp  .Done
.FreeRun:
    or   reg[SAR8_CONTROL_2_REG], 0x40
.Done:
    M8C_SetBank0
    RAM_EPILOGUE RAM_USE_CLASS_1
    ret
.ENDSECTION

; End of File SAR8.asm